Polinsky: Has anyone ever told you about the birds and the bees?

Lenny: [sarcastically] Yeah, we learned about it in biology. Bees sting and birds crap on your head.

Barbara: In the "sex club" we only talk about sex, we don't actual do it.

Lenny: That's okay I would not want to get anyone pregnant.

Alice: Oh you don't have to worry about that Barbara can't get pregnant, she has not started her period yet.

Barbara: Hey.

Lenny: What?